yum-mirror/slang

Making it easier to work with shaders

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aidanfnvAdd arguments for controlling floating point denormal mode (#7461)d50c3f34a

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1//TEST:SIMPLE(filecheck=CHECK_ANY):-target spirv-assembly -entry computeMain -stage compute
2//TEST:SIMPLE(filecheck=CHECK_ANY):-target spirv-assembly -entry computeMain -stage compute -denorm-mode-fp64 any
3//TEST:SIMPLE(filecheck=CHECK_PRESERVE):-target spirv-assembly -entry computeMain -stage compute -denorm-mode-fp64 preserve
4//TEST:SIMPLE(filecheck=CHECK_FTZ):-target spirv-assembly -entry computeMain -stage compute -denorm-mode-fp64 ftz
5
6//TEST:SIMPLE(filecheck=CHECK_DXIL):-target dxil-assembly -entry computeMain -stage compute -profile cs_6_2
7//TEST:SIMPLE(filecheck=CHECK_DXIL):-target dxil-assembly -entry computeMain -stage compute -profile cs_6_2 -denorm-mode-fp64 any
8//TEST:SIMPLE(filecheck=CHECK_DXIL):-target dxil-assembly -entry computeMain -stage compute -profile cs_6_2 -denorm-mode-fp64 preserve
9//TEST:SIMPLE(filecheck=CHECK_DXIL):-target dxil-assembly -entry computeMain -stage compute -profile cs_6_2 -denorm-mode-fp64 ftz
10
11// Capability shaderDenormPreserveFloat64 is VK_FALSE on the Vulkan device used for CI testing, resulting in
12// runtime error VUID-RuntimeSpirv-shaderDenormPreserveFloat64-06298 during CI testing
13//DISABLE_TEST(compute):COMPARE_COMPUTE(filecheck-buffer=PRESERVE):-vk -compute -Xslang -denorm-mode-fp64 -Xslang preserve
14// Capability shaderDenormFlushToZeroFloat64 is VK_FALSE on the Vulkan device used for CI testing, resulting in
15// runtime error VUID-RuntimeSpirv-shaderDenormFlushToZeroFloat64-06301 during CI testing
16//DISABLE_TEST(compute):COMPARE_COMPUTE(filecheck-buffer=FTZ):-vk -compute -Xslang -denorm-mode-fp64 -Xslang ftz
17
18// CHECK_ANY-NOT: DenormPreserve
19// CHECK_ANY-NOT: DenormFlushToZero
20
21// CHECK_PRESERVE: OpExecutionMode %computeMain DenormPreserve 64
22// CHECK_PRESERVE-NOT: OpExecutionMode %computeMain DenormPreserve 16
23// CHECK_PRESERVE-NOT: OpExecutionMode %computeMain DenormPreserve 32
24// CHECK_PRESERVE-NOT: DenormFlushToZero
25
26// CHECK_FTZ: OpExecutionMode %computeMain DenormFlushToZero 64
27// CHECK_FTZ-NOT: OpExecutionMode %computeMain DenormFlushToZero 16
28// CHECK_FTZ-NOT: OpExecutionMode %computeMain DenormFlushToZero 32
29// CHECK_FTZ-NOT: DenormPreserve
30
31// CHECK_DXIL-NOT: fp32-denorm-mode
32// CHECK_DXIL-NOT: preserve
33// CHECK_DXIL-NOT: ftz
34
35// In preserve mode, denormalized numbers should be preserved
36// PRESERVE: 9999999A
37// PRESERVE: 19999
38
39// In flush-to-zero mode, denormalized numbers should be flushed to zero
40// FTZ: 0
41// FTZ: 0
42
43// Smallest normal fp32
44//TEST_INPUT: set inputBuffer = ubuffer(data=[0x00100000 0x00000000], stride=8)
45RWStructuredBuffer<uint32_t> inputBuffer;
46
47//TEST_INPUT:ubuffer(data=[0], stride=8):out,name=outputBuffer
48RWStructuredBuffer<double> outputBuffer;
49
50[shader("compute")]
51[numthreads(1, 1, 1)]
52void computeMain()
53{
54    double smallNormal = asdouble(inputBuffer[1], inputBuffer[0]); 
55    double denorm = smallNormal / 10;
56    
57    outputBuffer[0] = denorm;
58}